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R-T-B based alloy for rare earth permanent magnet material, and method of manufacturing R-T-B rare 发明授权

2023-11-06 1360 434K 0

专利信息

申请日期 2025-07-08 申请号 JP2010198171
公开(公告)号 JP5743458B2 公开(公告)日 2015-07-01
公开国别 JP 申请人省市代码 全国
申请人 Showa Denko KK2004
简介 The present invention provides an alloy material for an R-T-B-based rare earth permanent magnet in which a high level of coercivity (Hcj) can be obtained, and a method for producing an R-T-B-based rare earth permanent magnet using the same that exhibits excellent productivity. The present invention relates to an alloy material for an R-T-B-based rare earth permanent magnet, in terms of an R-T-B-based alloy composed of R being two or more members selected from rare earth elements, T being a transition metal that essentially contains Fe, B and unavoidable impurities, including an R-T-B-based alloy in which the Dy content is more than 10 % by mass and less than 31 % by mass, and a metal powder.


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